/*
 * Copyright (C) 2000-2008 Jens Nixdorf and various contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies of the Software, its documentation and marketing & publicity
 * materials, and acknowledgment shall be given in the documentation, materials
 * and software packages that this Software was used.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.mopore.jat.gui.wizard;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;

import javax.swing.JFrame;
import javax.swing.JPanel;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.mopore.jat.gui.Theme;
import org.mopore.jat.util.ImageService;

public abstract class AbstractWizardDialog<C> extends JFrame implements IWizard<C> {
	
	private static final String NO_PAGE_CREATED = "can not instantiate wizard page";
	private final Log log = LogFactory.getLog(getClass().getName());
	private boolean released = false;
	
	public AbstractWizardDialog( String title, Theme theme ){
		this( title, theme, 300, 170);
	}
	
	public AbstractWizardDialog(String titleText, Theme theme, int width, int height) {
		BufferedImage image = ImageService.load( theme.getPath() );
		
		setIconImage( image );
		setSize( width, height ); 
		Toolkit t = this.getToolkit();
		this.setLocation(
			(int)((t.getScreenSize().getWidth() - this.getWidth())/2),
			(int)((t.getScreenSize().getHeight() - this.getHeight())/2)
		);	
		setDefaultCloseOperation( DISPOSE_ON_CLOSE );
		setTitle( titleText );
		
		getContentPane().setLayout( new BorderLayout() );
		
		addWindowListener( new WindowAdapter(){
			
			@Override
			public void windowClosing(WindowEvent e) {
				boolean finished = false;
				release( finished );
			}
		});
	}

	public void changePage(Class<? extends AbstractWizardPage<C>> pageClass, WizardContext<C> context) {
		
		try {
			final AbstractWizardPage<C> page = pageClass.newInstance();
			page.setWizardContext( context );
			
			JPanel contentPanel = page.getContentPanel();
			ButtonPanel buttonPanel = page.getButtonPanel();
			
			Container contentPane = getContentPane();
			contentPane.invalidate();
			contentPane.removeAll();
			contentPane.add( contentPanel, BorderLayout.CENTER );
			contentPane.add( buttonPanel.getPanel(), BorderLayout.SOUTH );
			contentPane.repaint();
			contentPane.validate();
			
			buttonPanel.addActionToFinishButton( new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					page.storeToContext();
				}
			} );
			buttonPanel.addActionToNextButton( new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					page.storeToContext();
				}
			} );			
		} catch (Exception e) {
			log.error( NO_PAGE_CREATED, e );
			throw new RuntimeException( NO_PAGE_CREATED, e );
		}
	}
	
	
	public void release( boolean finished ) {
		WizardContext<C> context = getContext();
		context.setFinished( finished );
		setVisible( false );
		dispose();
		released = true;
	}
	
	public boolean isReleased() {
		return released;
	}
	
	@Override
	public void repaintAll() {
		repaint();
	}

}
